A171219 - OEIS

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A171219

A138101(n)+A168142(n).

5, 5, 21, 21, 21, 21, 21, 21, 21, 21, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`This here basically repeats entries A168388(2k+1) 2*k^2 times for k=1,2,....` `The construction is similar to A168234.`
	LINKS	`Table of n, a(n) for n=1..59.`
	CROSSREFS	`Sequence in context: A352315 A283212 A283250 * A325893 A146043 A116400` `Adjacent sequences: A171216 A171217 A171218 * A171220 A171221 A171222`
	KEYWORD	`nonn,easy,less`
	AUTHOR	`Paul Curtz, Dec 05 2009`
	EXTENSIONS	`Comments tightened - R. J. Mathar, Nov 24 2010`
	STATUS	`approved`

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Last modified December 10 09:31 EST 2023. Contains 367710 sequences. (Running on oeis4.)